CautionWhen the humidifier is blowing mist, please do not unscrew the dome of the humidifier while it is misting vapor because you will damage the heating element in the unit. We broke one while doing our testing.

Roughly 2 ounces of water is stored in R2-D2's lil' body which is warmed up by the heating element connected to R2's dome. Once the water is hot enough, steam will begin to waft out of the porthole on the top of the humidifier. A power switch on the back side of the dome turns the humidifier on and off. The humidifier doesn't require batteries and is powered by plugging it into any USB port. New orders are welcome.

Cons
* Takes about 25-30 minutes to warm water before steam appears
* Short USB cable which measures only 2'
* No automatic shut-off

To speed up the humidifying action, pour hot tap water into the R2-D2 holder which will reduce the startup time to about 10-15 minutes.

Caution
When the humidifier is blowing mist, please do not unscrew the dome of the humidifier while it is misting vapor because you will damage the heating element in the unit. We broke one while doing our testing.